Max fbeedmajit



MAX rnEEDiviAiv, or inooirniirni, iviASSAcHUSnTTs.

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specification of Letters raient. Patentedglm@ g4, 1919 Application mea octoter'i, i915l serial No. 53,617.

To @ZZ 'whom t may cof/wem: f r t Be it known that I, MAX FRniiDMAN,a subject of the Czar of Russia, and residentof Brookline, county of Norfolk, Gommonwealth of Massachusetts, have invented an Improvement in Tires, of which theifollowing description, in connection withthe ac companying drawings, is a specification, `like characters on the drawings representing like parts in each of the several views. t

This invention relates to tires for auto-` mobiles and other road vehicles. A prime object of the invention is to provide a `metallic tire built up of relatively yieldab-le sections with interposed springs so arranged as to permit free and adequate yielding oi. the .y successive tire portions as the wheel re-` volves. To this end I provide a composite tire structure composed of` a plurality `of` segmental bands yieldingly mounted on the t `wheel rim and spaced aparttherefrom and `'trom eachother, the several sections of each band being yieldable with respect to each other as well as with respect to the adjacent segments of the other band.` The invention will be better understood from thetollowing t detailed description taken in connection with the accompanying drawings `and will be thereafter pointed out in the appended claims.

Referring to the drawings:`

Figure 1 is a side elevation of a tireicoii4 structed in accordance with my invention mounted on awheel, a portion of oneside thereof being broken `away Fig. 2 is a top plan `view ofa removable tread plate adapted `for use `with my iimproved tire l Fig. 3 is an elevation on a smaller scale showing a wheel equipped with my improved tire complete; and

Fig. 11 is a sectional detail showing one 'feature of the invention in modified form.

A wheel of an automobile or other vehicle has a 'rim indicated at 10 adapted to receive my improved tire thereon.l My improved` `tire is composed generally of two sectional ring bands 11, 12, the band 11 being spaced radially from the wheel rim 10 and the band 12 being spaced a similar distance from the 4band 11. Eachof these bands is composed of a. series, shown as ten in each case, of The segmental sections of the inner tire band 1.1 are indicated at 13,

segmental sections.`

14. These sections are` slidably `)fitted on radial posts 15 which may be `bolts radially secured to the rim 10, said posts passing t throughslots in said sections suitably elongated circumi-erentially to t permit radial movement of the sections. `Interposed between the sections 13, `ltand the rim 10 and fitted on the posts 15 are stout coil springs 16 adapted to be compressed as: the sections 13, 14 receive the load to impart resiliency thereto as later explained. The posts ,15 have their outer endsheaded as indicated at 17 and interposed between said heads and the outer sides of the `sections 13,14 are lighter. springs 1S;` the purpose of these springs beingto take up any looseness and act on the rebound outward of the sections` 13, 14- to retard and ease the same. rlhe sections13, 1I are interconnected by having a projecting tongue 19 at one `end of each thereof fit slidablyinto a cup 2O formed in the `abutting end of the adjacent section, such cups being shown asfornied in the sections 14L. The cups 2O are preferably and as indicated, Iitted with a rubber `lining 21M which contributes tolnoiseless operation and a-coil spring 22 is `litted in each of said cups to react against the ends of the tongues 19,

Athese springs of course .tending to press the sections 13, 111 apart. `ltions13, 14: slidablyinterconnected with the tongues 19yieldingly fitting partly into the cups 20, I provide coil springs 23 having their ends connected to the respective sections 13, 14 adjacent the ends thereof and preferably at both sides, said springs bridg` ing the gap between the sectionsaiid being preferably fitted into recesses Q4 in the sides 1 of the sections. In Fig. i I show a somewhatjmodiiied forni wherein provision is made for theescape of any dirt or foreign For hoIoling the sec-` matter that might get into the cups :20. For

this purposea clearance passage and slot 25 is provided opening trom the pocket or cup 20 wherein thespiing :22' is housed. so that `any dirt getting into the pocket 20 may readily `drop outl inward through such slot Q5. In this form I also show the spring Q2 connected at its; ends to the tongue 19 by a pin andhook 2G and at its `other end to` the section 14E `at the bottoni oi!` the slot20 by a .cross pin 27, this pin 27 being slotted so as not to interrupt the clearance passage 25.

'I outer ring band 1Q) isieoinposed of se@ l tions 28,

' yieldingly through the springs 32 from the' 33 similar to the springs 18, are

inner sections 13, 14 and to them again yieldingly, through the springs 16 from the rim 10 of the wheel. Lighter coil springs mounted between the heads 31 and the inner sides of the sections 13, 14 on the posts 30 the purpose of these being to cushion the reaction A from the springs 32 and keep the parts tight and reliably connected. The sections 28, 29 are slidably interconnected by tongues 34 fitting into cup sockets 35 with rubber linl ings similar to the sockets 20 and with like interposed coil springs 36. Also coil springs 37 are provided, connected at their ends to the adjacent ends of the sections 28, 29 to draw them toward each other in like manner as the springs 23, these springs being similarly housed in lateral recesses of the sections. springs 38 connecting adjacent ones of the several springs 18, 32, and also the springs 16, 33 to yieldingly brace and support these several radial springs laterally and te hold the structure properly assembled. A flanged band 39 is preferably fixed to the rim 10, the flanges at each side thereof extending out a little distance radially to guide and hold the connected parts of the tire in place, the inner edges of the sheets 43 hereinafter mentioned being preferably secured to these flanges. I preferably provide a separate and removable tread in sections, this being shown as a series of metallic plates 40 secured to the several outer sections 28, 29 as by screws 4l. Each of these tread plate portions is equipped with a series of calks which may ybe formed as rubber plugs 42 passed through said plates and projecting outward ther l from, these calks being detachable for renewal as required. Suitable flexible sheets 43 of canvas or the like may be buttoned or otherwise secured to cover the sides of the tire to prevent dirt, stones and other foreign matter from getting into the open spaces between the bands 11, 12 and between the band 11 and the rim. I-t is of course to be understood that while I show the number of band sections in therbands 11, 12 as ten in each band, this number is merely illustrative and that any desired number of sections may' be used in either band. It is also to be underf- I preferably provide a series of -slidably fitted to said posts and stood that the particular type and arrangement of springs shown both as to the radial springs and as to those extending around the wheel, is merely illustrative and that any desired arrangement and type of springs may be employed as found most suitable vin each particular case. I therefore desire the present embodiment to be considered in these and other respects as merely illustrative and not restrictive, reference being had to the appended claims rather than to the foregoing description to indicate the scope of the invention.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A built up tire, comprising a plurality of radially spaced apart segmental metallic ring bands, the inner of said bands being also spaced away from the wheelrim, means for holding said bands resiliently spaced from each other and also resiliently spaced from the wheel rim, and means for holding the segments of each of said bands in yielding slidable relation with one another.

2. A built up tire, comprising a plurality of segmental ring bands yieldingly spaced from each other radially and also spaced from the wheel rim, means for Ayieldingly connecting adjacent ends of said segments with a slidable interfitting, and means yieldingly resisting the dra ing apart of adjacent segments.

3. The combination with a wheel rim having spaced apart radial posts fixed thereto with spiral springs on said posts, of a segmental tire band, the segments thereof being slidably fitted to said posts, and relatively light springs fitted on said posts outside of said segments to react thereagainst, said posts having heads at their outer ends to serve as backings for the last named springs.

4. The combination with a wheel rim having spaced apart radial posts fixed thereto with spiral springs on said posts, of a segmental tire band, the segments thereof being yieldingly connected with one another, and relatively light springs fitted on said posts outside of said segments to react thereagainst, said posts having heads at their outer ends to serve as backings for the last named springs.

5. The combination with a wheel rim having spaced apart radial posts projecting therefrom with spiral springs on said posts, of a segmental tire band, the sections thereof being slidably fitted to said posts, certain of the ends of said segments having rubber lined cup sockets with springs fitted therein, and the adjacent ends of abutting segments having tongues slidably fitting said sockets.

6. The combination with a wheel rim having spaced apart radial posts extending therefrom with spiral springs on said posts, and an inner segmental band, the segments thereof being slidably fitted to said posts, of springs being adapted to l'eaet between the an louter segmental tire band having spaced segments of the inner and outer bands. apart inwardly extending radial posts with In testimony whereof, I have signed my 10 springs fitted thereon, said last named posts name to this specification.

5 being fitted to slide through the segments of the first named band, and the last named MAX FREEDMAN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

